Interference with microtubule polymerization results in cell cycle arrest leading to cell death. Colchicine is a well-known microtubule polymerization inhibitor which does so by binding to a specific site on tubulin. A set of 3',4'-bis (substituted phenyl)-4'H-spiro[indene-2,5'-isoxazol]-1(3H)-one derivatives with known antiproliferative activities were evaluated for their tubulin binding modes...

We report the electrogenerated chemiluminescence (ECL) of 2,2'-bis(10-phenylanthracen-9-yl)-9,9'-spirobifluorene (spiro-FPA), a dichromophoric molecule composed of two phenylanthracenes linked by a spirobifluorene moiety (PA-X-PA). The results are compared to those for 9,10-diphenylanthracene (DPA), a related molecule with a single chromophore. Cyclic voltammetry (CV) of spiro-FPA shows two rev...

Heterocyclic compounds containing β-lactum structure with different hetero atoms are found to show biological activities1. In the present work, it has been synthesized the semicarbozone and thiosemicarbozone derivatives of 3-methyl-2,6-diphenylpiperidin-4-one followed bycyclisation to get the spiro compounds. These spiro compounds. The spiro products have been characterized by C,H,M analysis, I...

The crystal structure of the title compound [systematic name: 2-(1,3-dithiolo[4,5-b][1,4]dithiin-2-ylidene)-6,6-bis(methoxyethoxymethoxymethyl)-1,3-dithiolo[4,5-b][1,4]dithiepine], C(21)H(30)O(6)S(8), a spiro-substituted BEDT-TTF analogue [BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene], has a strongly bent heterocyclic framework. The seven-membered ring adopts a pseudo-chair conformation wi...

The pattern of mannosyl lipid-linked oligosaccharides synthesized by cell-free enzyme preparations from cultured fibroblasts is altered substantially when 0.2 muM UDP-glucose is added to the incubation medium. Inclusion of UDP-glucose results in the appearance of a new labeled oligosaccharide, which is 1 or 2 glycose units larger than the lipid-linked oligosaccharide synthesized in the presence...

Energetic oxetanes were first described in the 1970s, such as 3,3-bis(azidomethyl)oxetanes (BAMO) and 3-(nitratomethyl)-3-(methyl)oxetanes (NIMMO). Over past few years, hardly available only special-purpose chemicals for pharmaceutical industry. Oxetan-3-one is condensed with energetic compounds a hydrazino function amino-nitroguanidine picryl hydrazine to form Schiff bases. Hydrazinolysis of g...